1. High amounts of SARS-CoV-2 in aerosols exhaled by patients with Omicron variant infection;Zheng;J Infect,2022
2. SARS-CoV-2 Omicron infection is associated with high nasopharyngeal viral load;Salvagno;J Infect,2022
3. How to obtain a nasopharyngeal swab specimen;Marty;N Engl J Med,2020
4. Centers for Disease Control and Prevention COVID-19. Interim guidelines for collecting and handling of clinical specimens for COVID-19 testing. 〈https://www.cdc.gov/coronavirus/2019-ncov/lab/guidelines-clinical-specimens.html〉 [Accessed 25 February 2023].
5. National Institute of Infectious Disease, Laboratory Manuals for Pathogen Detection. Manual for the detection of pathogen; 2019. nCoV. Ver. 2.6. 〈https://www.niid.go.jp/niid/images/epi/corona/2019-nCoVmanual20200217-en.pdf〉; 2020 [Accessed 25 February 2023].